1066206728 has 16 divisors (see below), whose sum is σ = 2013522000. Its totient is φ = 529267536.

The previous prime is 1066206727. The next prime is 1066206737. The reversal of 1066206728 is 8276026601.

It is a happy number.

It is a super-2 number, since 2×1066206728² = 2273593573664931968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1066206691 and 1066206700.

It is not an unprimeable number, because it can be changed into a prime (1066206727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478298 + ... + 480521.

It is an arithmetic number, because the mean of its divisors is an integer number (125845125).

Almost surely, 2^1066206728 is an apocalyptic number.

It is an amenable number.

1066206728 is a deficient number, since it is larger than the sum of its proper divisors (947315272).

1066206728 is a wasteful number, since it uses less digits than its factorization.

1066206728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958964 (or 958960 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 1066206728 is about 32652.8211338622. The cubic root of 1066206728 is about 1021.5990323541.

The spelling of 1066206728 in words is "one billion, sixty-six million, two hundred six thousand, seven hundred twenty-eight".